baber/WOPTO huggingface dataset:
Patent GB-504162-A (GB)
Title: Improvements in or relating to propeller driving gear for aircraft
IPC: B64C11/00
Filed: 1938-05-06
Abstract: 504,162. Propelling aircraft. DOR. NIER-WERKE GES., and DORNIER, C. May 6, 1938, No: 13597. Convention date, June 8, 1937. [Class 4] Pusher airscrews are disposed' adjacent the rear edge of and mounted on the wings of an aircraft and the airscrew shafts are tiltable in such manner that each forms an angle open rearwardly and upwardly with the chord of the wing. In one form, a pusher airscrew 2 is driven through, bevel-gears 8, 9 and a shaft 3 carried by a pivoted frame 6 which may be inclined by rotation of a hand-wheel 12 having a screw-threaded boss engaging right- and left-handed screw-threaded shafts 14, 13. In a modification a tractor-airscrewshaft is mounted in a similar frame and the two frames are simultaneously tilted on actuation of a right- and left-handed screw-threaded shaft engaged by nuts connected by links to the frames. In another form, the aeroengine, airscrew and driving shaft are mounted in a pivoted frame adapted to be tilted by an hydraulic jack, and, in a modification, a tractor airscrew and aeroengine are mounted in a similar frame ; the two frames have intermeshing gear teeth and are tilted by screw-andnut mechanism. The aero-engines may be placed above, below or in the wings.
Patent GB-442926-A (GB)
Title: Improvements in or relating to hopper feeders for feeding cotton to scutching or picking machines
IPC: D01G31/00
Filed: 1934-08-20
Abstract: 442,926. Hopper feeders for cotton. KERSHAW, J. G., Drummondville, and DOMINION TEXTILE CO., Ltd., 710, Victoria Square, Montreal, both in Quebec, Canada. Aug. 20, 1934, No. 13599/35. Divided out of 442,894. [Class 120 (i)] In automatic operating mechanism in hopper feeders supplying cotton to scutchers or pickers an electromagnetic clutch mechanism electrically connects a feed carrier 17, Fig. 1, in the hopper to a movable member 23 in the delivery section which operates to de-energize the electromagnets consequent upon choking of the cotton in the delivery section 18. The cotton is detached from the lifting lattice 17 by a beater 19 at the mouth of the delivery section 18, the top wall of which is formed by an upper door 23 pivoted in bearings 24 and a cover door 25 secured in bearings 26. The pivot member of the door 23 carries at one end an arm 27, Fig. 3, which engages a slot 28 in a pivoted lever 29 and according as the section 18 is full of cotton or otherwise the door 23 is moved to separate the contacts 31, 34, when the feed lattice 17 stops, Fig. 6, or to engage the contacts, when the feed recommences, Fig. 5. The contacts 31, 34 control the circuit energizing the cores 48 of an electromagnetic clutch within the pulley 49, Fig. 3, the cores 48 when energized making contact with the clutch plate 50 and driving the carrier 17 through gears 53. Specification 442,894 is referred to.
Patent GB-351653-A (GB)
Title: Reduction of metallic compounds
IPC: C22B5/00
Filed: 1930-05-02
Abstract: Arsenates are produced by the process of reducing metallic compounds described in Specification 315,811, [Class 1 (iii), Oxides &c., Metallic], in which arsenic trioxide is caused to react with an alkali metal compound in the presence of the metallic compounds to be reduced, the arsenic trioxide being replaced by metallic arsenic.ALSO:In the process of reducing metallic compounds in which arsenic trioxide is caused to react with an alkali metal compound in the presence of the metallic compounds or residues to be reduced, as described in Specification 315,811, [Class 82 (i), Metals, Extracting &c.], the arsenic trioxide is replaced by metallic arsenic.
Patent GB-414858-A (GB)
Title: A device for use in conjunction with telephones for notifying to the caller the time of the return of the subscriber who is absent when called
IPC: H04M1/64
Filed: 1933-05-11
Abstract: 414,858. Mechanical bells. HOBOHM, H., 20, Gersthoferstrasse, Vienna. May 11, 1933, No. 13768. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 13, 1933.] [Class 13.] Apparatus for signalling to a calling party the time of return of an absent telephone subscriber distinguishes in the nature of the signal given between different times of the day such as morning and afternoon or day and night. In one construction, Fig. 1, a pinwheel 6 which makes one revolution at each operation of the mechanism carries twelve pins 7 progressively varying in length and co-operating with an arm 8<a> on the bell striker 8, the actual number of strokes being variable at will by adjustment of a pointer on the axle W4 which through a helical groove 8<b> moves the arm 8<a> so as to be struck by only a corresponding number of the pins 7. A further adjustable arm 19 in position II inserts a second clapper (of different material) into the path of clapper 8 so that double strokes are given on gong T, whilst in position III single strokes by clapper 8 only are given. In a modified construction, Fig. 7, the pins 7I are of equal length, the number of strokes of clappers PI, PII, being variable by an adjustable arm on shaft WIII which when it engages the ends 34I, 34II, of the clappers lifts them out of the path of the remaining pins and locks them behind arms 40I, 40II, on a lever 42 which is freed by a pin 41 when the pin-wheel completes its revolution. The starting of the gear-train is controlled by a member 32 which co-operates both with a groove 33 on the pin-wheel 6I and with a pin 31 on the speedregulator shaft. One hammer PII is cut out in order to send single strokes by a pin 48 on an adjustable shaft WVI. The Specification as open to inspection under Sect. 91 states also that as alternative means for distinguishing between different times of day there may be used single strokes on bells of different tones, for example, a rotatable bell dome with the two halves of different metals, or mechanical bell signals with and without superposed electromagnetically-produced signals. This subject-matter does not appear in the Specification as accepted.
Patent GB-1291112-A (GB)
Title: Ignition switches
Inventor: RUSHTON DEREK
IPC: H01H27/06
Filed: 1969-03-17
Abstract: 1291112 Mechanical switches JOSEPH LUCAS (INDUSTRIES) Ltd 6 March 1970 [17 March 1969] 13790/69 Heading H1N A vehicle ignition rotary switch which can be turned from a first "off" position to a second "on" position in which ignition and auxiliary circuits are energized and to a third "start" position wherein the starter motor is additionally energized, is retroactive from the third to the second position and cannot then be turned again to the third position until it has been moved back to the first position. The switch rotor (12, Fig. 1, not shown) has a spigot 72a which carries an annular plate 13 having a finger portion 14 moving over a cam track 21 formed in part of the switch housing 11. A spring strip 15 urges finger 14 on to a plateau portion 22 and also urges it radially outwards. When the switch is turned "on" the rotor (12) moves the plate 13 such that finger 14 rides up an incline 25; further rotation of the rotor to the "start" position causes finger 14 to be forced radially inwards to drop on to surface 23. When the switch retracts to the second position the finger 14 drops over the shoulder 24 and the rotor cannot then be moved back to the third position until it has been restored to the first position, allowing finger 14 to move radially outwards such that it will then move up the incline 25 and clear shoulder 24. Instead of a U-shaped spring strip 15 a small coiled compression spring (26, Fig. 4, not shown) may provide both the required axial and radial components of force on the plate 13.
Patent GB-800749-A (GB)
Title: Improved aviation fuels
Inventor: HOBART ERNEST
IPC: C10G19/06
Filed: 1956-05-04
Abstract: Aviation fuel, such as gasoline or kerosene, is fed into a centrifugal pump operating under cavitation conditions and dissolved air is removed at the vortex core and replaced with an inert gas, such as nitrogen or helium, under pressure, to reduce the explosion liability.
Patent GB-915879-A (GB)
Title: Filtering apparatus
Inventor: BRAITHWAITE RICHARD WILLIAM
IPC: B01D33/073
Filed: 1960-04-20
Abstract: 915,879. Centrifugal separators. BRAITHWAITE EQUIPMENT Ltd. July 17, 1961 [April 20, 1960], No. 13856/60. Class 23. [Also in Group I] A filtering apparatus comprises a rotatable centrifuging chamber 12 having a coaxial inlet passage 22 for liquid under pressure and at least one outlet passage 14 from the other end of the chamber and adjacent the axis of rotation, a tubular pervious filter element 34 coaxially within the chamber, such that its bore communicates with the outlet passage, but not directly with the interior of the chamber, while its outer surface is exposed to the part of the interior of the chamber with which the inlet passage communicates, and a belt drive from a motor 11 to rotate the chamber, a deflecting screen 32 being attached to the central part of a removable spider member 31 which has radial vanes forming a series of passages for incoming liquid. A detachable cover-plate 19 screwed on the top of the chamber is attached through roller bearings 23 to a lever 25 which is pivoted at 26 and clamped to a supporting frame 3, which is flexibly connected to three pairs of brackets 2 on a main support 1 by spring buffers. The chamber 12 is also supported in bearings in brackets 4, 5 rigidly mounted on the frame 3. The chamber 12 may be arranged with its axis inclined or horizontal and, when the axis is vertical or inclined, the inlet passage may be in the upper or lower end of the chamber.
Patent GB-1390016-A (GB)
Title: Method of fault location on electric transmission and distribution  systems
IPC: G01R31/08
Filed: 1971-05-08
Abstract: 1390016 Locating faults in power supply systems A REFSUM and D O LAVELLE 8 May 1972 [8 May 1971] 13901/71 Heading G1U Faults in an electricity supply system are located by injecting a test signal into the system and moving an aerial along a path adjacent to the line conductors so that the extent to which the test signal has propagated within the system may be detected by the use of a narrow band radio receiver tuned to the test signal frequency. In the preferred embodiment the test signal, which is generated by frequency doubling the power supply frequency using either a magnetic amplifier Fig. 4 (not shown) or a full-wave bridge rectifier Fig. 5 (not shown), is injected into the supply lines a, b, c, Fig. 1, via the supply transformer T and a tuned circuit 1 Fig. 6, (not shown). If a fault to earth, such as Z, occurs then the test signal will not progress beyond that point so that by tracing the test signal with an aerial and a selective receiver the fault can be located. A circuit for an appropriate receiver using a phase-locked loop is outlined Fig. 6, (not shown).
Patent GB-1135167-A (GB)
Title: Lamp flashing system for vehicles
IPC: B60Q1/38
Filed: 1967-03-28
Abstract: 1,135,167. Vehicle flashing system. UNITEDCARR Inc. 28 March, 1967 [19 April, 1966], No. 13971/67. Heading G4Q. A flashing system for a vehicle comprises a relay coil 25 shunted by a capacitor 27 and in series with a resistance 24, whereby on connecting a D.C. supply at 16, 21 the capacitor charges up slowly to a voltage sufficient to operate the relay and close contacts 18. A low-resistance relay coil 19 is now shunted across the circuit and the capacitor discharges, ultimately de-energizing the relay 25 and opening the contacts 18. One or more lamps 23 can be switched in series with the relay 25 to flash in synchronism with it. They relay 19 operates a repeater lamp 30 through contacts 29. The lamps can if desired be switched to operate continuously through lead 32. Failure of a lamp 23 causes relay 19 to drop out and extinguish the repeater 30. In a modification (Fig. 3, not shown) the contacts 18 are replaced by changeover contacts which isolate the relay coil 25 and reduce drain on the power supply.
Patent GB-559105-A (GB)
Title: Apparatus for the stabilization of alternating voltages
IPC: G05F1/42
Filed: 1942-10-08
Abstract: 559,105. Automatic regulation. GLYNNE, A. Oct. 8, 1942, No. 14118. [Class 38 (iv)] A correcting voltage, to be added to an A.C. supply voltage 19 to obtain a stabilized voltage suitable for instrument testing, is obtained from the supply voltage through two like Wheatstone bridges a, b having a common pair of arms. The diagonal of one bridge a has a resistance 18 which, when the bridge unbalances due to supply voltage variation, is the seat of a voltage comprising unwanted third harmonic and quadrature components. These components are eliminated by a resistance 16 in the diagonal of the bridge b which contains elements 14, 15 tuning it to the third harmonic. The correcting voltage taken from the leads 21, 22 may be supplied through a thermionic amplifier to a transformer 27 with a secondary winding in series with the supply voltage and output terminals 29. The amplifier shown has a tapped anode resistance 23<SP>1</SP> to adjust the amplification and the power output valve has an automatic bias resistance 28. The Wheatstone bridges have resistances 4, 7, 11, such as metal filament lamps, which vary with applied voltage, and resistances 3, 8, 12 not affected appreciably by temperature.
Patent GB-791540-A (GB)
Title: Improvements in or relating to apparatus for sorting by weight
IPC: B03B4/00
Filed: 1956-05-07
Abstract: 791,540. Screening apparatus. BERRY, P. May 7, 1956 [May 7, 1955], No. 14152/56. Class 117 A screen 15 over which a mixture of solid products is fed from an inlet end to an outlet end is perforated over its whole surface for the passage of an intermittent upward flow of gas therethrough, but not for the passage therethrough of the solid products, and has apertures 22 to permit the passage of the heavier products of the mixture. The apertures extend from the outlet end to a line spaced from the inlet end to enable a preliminary separation of the heavier products to be effected before the mixture reaches the apertures. The screen is mounted in a box structure 10 supported by flexible strips 16, and is oscillated longitudinally by an out-ofbalance weight 34 on an eccentric 33 mounted on a support 35. Two opposing walls of the structure 10 below the screen have ports 24 therein: the ports in one wall are associated with the delivery duct of a fan, and the ports in the other wall are associated with the suction conduit of a second fan. A slide valve 29 with passages 30 is provided for each set of ports and is driven in synchronism with the screen oscillations by rods 31, 32 driven from the eccentric 33. The arrangement is such that the set of ports in one wall are closed whilst the ports in the other wall are opened. Solid products are fed from a feeder 19, and the heavier products pass through the apertures 22 to a hopper 14 and a rotary discharge device 23. Intermediate products flow through a passage 21, and the lightest products flow over a sill 20. In an alternative construction the screen is stationary and the hopper comprises a number of separate compartments extending longitudinally of the screen and each provided with a rotary discharge device. In Fig. 4 the hopper compartments are isolated from each other by partitions 43 extending to, and above, the screen, and each compartment has its own air admission and exhaust ports controlled by slide valves. Those parts of the partitions above the screen are spaced therefrom to enable the larger products to pass. A discharge device at the lower end of the screen includes vertically adjustable flow regulators 49, 50, Fig. 6, and a flow of air into the discharge passage 21 from a casing 51 is controlled by a regulator 53.
Patent GB-642569-A (GB)
Title: Improvements in or relating to appliances for use in milking animals
IPC: A01J7/00
Filed: 1948-05-25
Abstract: 642,569. Cow milkers. ECREMEUSES SOC. ANON., and BABSON, H. B. May 25, 1948, No. 14153. [Class 84] Apparatus for supporting a milker in operative relation to an animal for milking comprises a stationary element, a horizontally movable supporting member mounted on the said element and adapted to carry the milker and gravity operated means for urging the said supporting member in a desired direction. Fig. 1 shows a supporting member 18 carried by stationary member 15 and vertically adjustable thereon by means of rack 16 and pinion operated by handle 17. Member 18 is mounted to pivot about a substantially vertical axis. A yoke-shaped, relatively narrow carrying member 25 is pivotally mounted on member 18 and has a protuberance 25c, Fig. 3, which engages in a notch in the handle of the milker which it carries. A weight 20 is attached by a loop on rope 21 passing over a pulley 22 to one or other of pegs 23a, 23b, 23c placed at spaced points along member 18. The other end of the rope 21 is attached to the stationary element so that, when the said loop is disconnected from the said pegs, the movement downwards of the weight is limited. The use of several points of attachment of rope to member 18 permits the force urging the said member to be varied.
Patent GB-388014-A (GB)
Title: Improvements relating to electron discharge oscillation generators
IPC: H03B5/34
Filed: 1931-05-13
Abstract: 388,014. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Moles, F. J.; R. D. I., Schenectady, New York, U.S.A.) May 13, 1931, No. 14175. Convention date, May 22, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] A valve generator 1 with its frequency accurately controlled by a crystal or like device 2 is coupled to a second generator 8 so as to maintain the frequency of the latter at a figure which is an integral fraction of the former. The common plate supply lead for the two valves includes an inductance 5 so that the lower frequency modulates the higher frequency and produces upper and lower sidefrequencies. Each valve is also arranged to generate harmonics of its fundamental frequency. Thus if the valve 8 generates a frequency n and the valve 1 a frequency 10n, a whole series, of frequency from n to high multiples of n, may be taken off from the output coil 7<1>. Each valve can be operated separately by opening one of the filament switches 17, 18. The frequencies can be selected in turn bv a tuned circuit 16. and can be used to calibrate an oscillator 12 by listening for zero beat in the phones 14, or by like means.
Patent GB-1509971-A (GB)
Title: Elastically yieldable rail fastener
IPC: F16F1/26
Filed: 1975-04-07
Abstract: 1509971 Rail fastener; clips RESSORTS DU NORD SA 7 April 1975 [19 April 1974 (2)] 14194/75 Headings E1G and E2B A spring fastener for a railway rail comprises at least one bendable main strip L, and a transverse elastically yieldable strip R curved along its length such that its ends bear against the edges 6 of the main strip L, each strip having a through aperture for a clamping means such as fastening bolt O, and being such that when, in operative disposition, a cavity is disposed between the two strips in the region of the apertures. The strip R may have a truncated conical formation impressed in its centre. The edges 8 of the strip R may be flanged or bent around the edges of the main strip L. An elastomeric insulator F, Fig. 6, may be used between the two strips.
Patent GB-345871-A (GB)
IPC: H01H9/42
Filed: 1930-05-09
Abstract: 345,871. Arc-rupturing in switches. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Baker, R. P. ; 1, Turtle Creek, Pennsylvania, U.S.A.) May 9, 1930, No. 14348. Convention date, May 10, 1929. [Class 38 (v).] In switches of the " deion type as described, for example, in Specification 288,326, [Class 38 (v), Electric switches &c.], wherein the arc, at break, is drawn into a chamber containing a number of metal plates where it is broken up and the small arcs caused to rotate between adjacent plates by a magnetic field, barriers of arc-resisting material are disposed between the plates to prevent the arc from rotating continuously in the same path. In the construction shown in Figs. 1 and 2, the barrier 5 is in spiral form between the plates 1. It may be secured to one of the plates and extend into proximity with the neighbouring plate without, however, touching it. This construction serves adequately to guide the arc in spiral form while leaving spaces for evacuation of the arc gases. In another construction (Fig. 4, not shown) the barriers are supported in spiral slots in each alternate plate. The guiding walls of the barriers may cause the arc to take a zig-zag or other multiple-fold path.
Patent GB-595591-A (GB)
Title: Improvements in or relating to automatic weft replenishing mechanisms for looms
IPC: H01R33/08
Filed: 1943-09-03
Abstract: 595,591. Looms with automatic weft replenishment. SMITH, F. L., and SHACKLETON, G. W. Sept. 3, 1943, No. 14389. [Class 142 (iii)] The invention relates to automatic weft replenishing mechanisms for looms having drop boxes at one end and a full bobbin magazine and replacement mechanism at the other. According to the invention, upon weft exhaustion an electric circuit is closed at the drop boxes which passes through contacts associated with the dobby to operate a single electro-magnet controlling release mechanism for a full bobbin selected from the magazine by means connected to the drop box mechanism, so that bobbin replacement is effected when the shuttle next arrives at the magazine end of the loom after indication of weft exhaustion. A contact in each shuttle touches conductive portion of a bobbin in the shuttle on substantial weft failure and each shuttle also has external contacts to associate with contacts in the drop boxes which are in circuit with a magnet 9, Fig. 1, through a dobby plate switch and a wiper actuated by the dobby mechanism. Energisation of the magnet 9, on completion of the circuit, causes a tongue 17 to be placed in the path of a camoperated frog 18 with consequent movement of a lever 20, rod 21, lever 21a and arms 22 and 23. The arm 23 is connected by a rod 24 to a selector slide 16, reciprocated by a system of levers operated from the drop box mechanism, and actuation of the arm 23 by energisation of the magnet 9 releases a selected full bobbin, from the magazine 10 and allows it to fall into an outlet 12, where it is held by levers 25, 26 until forced into a shuttle 1 by a hammer 27. The hammer 27 is mounted on an arm 28 connected to a frog 29 normally held out of contact with a tongue 43 on the loom sley but which is raised into operative position by a rod 39 connected to the arm 22 through' a lever 40, divided link 41 and rod 42, Fig. 5. Divided link 41 has a slot 41x enabling the arm 22 to make an initial movement without raising the frog 29. Arm 22, loosely mounted on the boss of the arm 23, is moved into the bobbin change position by a spring 22a when released from a stop 22c, Fig. 3, and, on moving, causes a shuttle feeler arm 13 to swing behind the shuttle to determine whether it is fully home. If the feeler arm 13 is able to pass behind the shuttle the arm 22 makes a full movement and the frog 29 is raised to operative position, whereupon the weft from the spent bobbin is cut by a knife 31 carried on the feeler arm 13. If the shuttle is not completely-boxed the arm 13 cannot pass behind it.and the arm 22 is prevented from making its full movement, as a result, the frog 29 will not be raised and remains inoperative.